Stacking device for laminboard and using method of stacking device

Abstract

The invention relates to the field of building sandwich panels, and discloses a stacking device for sandwich panels and a using method thereof.The stacking device comprises a supporting base, a conveying frame, a stacking and clamping assembly, a dismounting and mounting assembly, a box body and two clamping frames, and the stacking and conveying assembly is arranged in the supporting base. Second-level replacement of laminboard clamps of different specifications is achieved, and the downtime of equipment is greatly shortened; the pressure sensor and the intelligent control system are originally integrated in the clamping mechanism, the clamping force can be monitored in real time and dynamically adjusted, the clamping stability is ensured, and the core material is prevented from being pressed and deformed; through cooperative control of the lead screw-guide rod composite transmission system and the hydraulic cylinder, high-precision positioning of lifting translation movement of the sandwich panel is achieved, and stacking position errors are reduced. According to the overall scheme, the automation level and the stacking quality of laminboard production are remarkably improved, and meanwhile the manual intervention strength and the material loss rate are reduced.

Description

Technical Field

[0001] This invention relates to the field of sandwich panels, specifically to a stacking device for sandwich panels and its method of use. Background Technology

[0002] In the current production process of sandwich panels for building roofs, traditional stacking methods mainly rely on manual handling or simple mechanical devices, which have significant technical drawbacks: existing mechanical stacking equipment generally uses clamping mechanisms with fixed spacing, which cannot adapt to sandwich panels of different thicknesses and specifications. Changing clamps requires stopping the machine to remove bolts, which seriously affects production efficiency; although some automated equipment uses pneumatically driven clamping, it lacks a pressure feedback mechanism, which can easily cause deformation of the polyurethane / PIR core material due to excessive clamping force; conventional conveying mechanisms mostly use chain or belt conveyors, which are prone to positional deviations during lifting and translational movements, resulting in stacking misalignment. These problems severely restrict the automation level of sandwich panel production lines. Therefore, this paper proposes a stacking device for sandwich panels and its usage method. Summary of the Invention

[0003] The purpose of this invention is to provide a stacking device for sandwich panels and a method of using the same, so as to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a stacking device for sandwich panels, comprising a support base, a conveying frame, a stacking clamping assembly, a disassembly assembly, a housing, and two clamping frames, wherein the support base is provided with a stacking conveying assembly; The palletizing conveying assembly includes a first motor, a lead screw, and a hydraulic cylinder. A movable seat is threaded onto the outer side of the lead screw, a movable frame is fixedly connected to the outer side of the movable seat, and a support frame is fixedly connected to the bottom of the movable frame. The assembly and disassembly assembly includes a fixing frame, several springs, snap rings, and insert blocks. The fixing frame has a cavity in which several insert rods are movably inserted. The palletizing clamping assembly includes a second motor, a pressure sensor, a controller, a gear, and two crossbars. Sliders are fixedly connected to both ends of the crossbars. A through groove adapted to the slider is opened on the top of the connecting frame. A rack that meshes with the gear is fixedly connected to one side of each of the two crossbars.

[0005] Preferably, the first motor is fixedly installed on the top of the support base, the output end of the first motor is fixedly connected to the lead screw, and the lead screw is rotatably connected inside the support base.

[0006] Preferably, connecting frames are fixedly connected to both sides of the aforementioned movable frame, the hydraulic cylinder is fixedly installed on one side of the support base, and the connecting frame is fixedly connected to the piston rod of the hydraulic cylinder.

[0007] Preferably, the support base has two guide rods fixedly connected inside, the movable seat movably passes through the guide rods, and the movable seat is slidably connected inside the support base.

[0008] Preferably, the aforementioned fixing frame is fixedly connected to the bottom of the slider, and the insert block is fixedly connected to one side of the clamping frame.

[0009] Preferably, the outer side of the aforementioned insertion rod is fixedly connected with a first baffle and a second baffle from top to bottom, the spring is sleeved on the outer side of the insertion rod, the top of the spring is fixedly connected to the bottom of the first baffle, the other end of the spring is fixedly connected to the cavity, and the bottom of the insertion block is provided with a slot that matches the insertion rod.

[0010] Preferably, the bottom of the aforementioned fixing frame is provided with a groove, the second baffle is movably inserted into the groove, the retaining spring is located in the groove, and the top end of the insert rod is movably inserted into the slot.

[0011] Preferably, the pressure sensor is fixedly embedded in the side wall of the fixing frame and fits against one side of the clamping frame, the controller is installed on one side of the housing, and the pressure sensor is electrically connected to the second motor through the controller.

[0012] Preferably, the aforementioned housing is fixed to the top of the support frame, the second motor is installed on the top of the housing, the output end of the second motor is inserted into the housing and fixedly connected to the gear, and both the upper and lower ends of the gear are fixedly connected with annular protrusions.

[0013] In addition, the present invention also provides a method of using a stacking device for sandwich panels, comprising the following steps: S1. Clamping frame installation: Insert the insert block on one side of the clamping frame into the fixing frame, and lock it by disassembly and assembly components, thereby installing the two clamping frames opposite each other under the connecting frame; S2, Palletizing device moves down: The sandwich panel moves with the conveyor frame to the bottom of the moving frame, and the first motor rotates in the forward direction to drive the moving frame to move down to the outside of the conveyor frame; S3, Clamping the sandwich panel: The second motor drives the two crossbars to move relative to each other through gears and meshing racks on both sides, thereby driving the two opposing clamping frames to move relative to each other and clamp the sandwich panel. When the pressure of the pressure sensor being squeezed by the sandwich panel exceeds the set threshold for more than 2 seconds, the second motor temporarily stops and the sandwich panel is clamped. S4, Stacking sandwich panels: The first motor rotates in the reverse direction to drive the moving frame holding the sandwich panel to move upward. The hydraulic cylinder drives the moving frame away from the conveyor frame and moves it above the stacking frame through the connecting frame. The first motor rotates in the forward direction, driving the sandwich panel to move downward onto the stacking frame. The second motor reverses to reset and release the sandwich panel, completing one stacking of sandwich panels.

[0014] Compared with the prior art, the present invention, employing the above technical solution, has the following technical effects: This invention employs a quick-detachable clamping frame assembly combined with a spring-loaded locking mechanism, enabling the replacement of clamps for sandwich panels of different specifications within seconds, significantly reducing equipment downtime. Uniquely, this invention integrates a pressure sensor and intelligent control system into the clamping mechanism, allowing for real-time monitoring and dynamic adjustment of the clamping force, ensuring clamping stability while preventing core material deformation under pressure. Furthermore, through the coordinated control of a lead screw-guide rod composite transmission system and a hydraulic cylinder, this invention achieves high-precision positioning of the sandwich panel's lifting and translating movements, reducing stacking position errors. The overall solution significantly improves the automation level and stacking quality of sandwich panel production, while reducing manual intervention and material loss rates. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the clamping frame in an exploded state according to the present invention; Figure 2 This is a schematic diagram of the support structure of the present invention; Figure 3 This is a schematic diagram of the structure of the fixing frame in an exploded state according to the present invention; Figure 4 This is a schematic diagram of the connecting frame structure of the present invention; Figure 5 This is a schematic cross-sectional view of the fixing frame of the present invention; Figure 6 This is a schematic diagram of the fixing frame structure of the present invention; Figure 7 This is a schematic cross-sectional view of the support base of the present invention; Figure 8 This is a schematic cross-sectional view of the box structure of the present invention; Figure 9 This is a flowchart illustrating the usage method of the present invention.

[0017] Explanation of reference numerals in the attached drawings: 1. Support base; 2. Conveyor frame; 3. Palletizing conveyor assembly; 31. First motor; 32. Lead screw; 33. Guide rod; 34. Moving seat; 35. Moving frame; 36. Support frame; 37. Connecting frame; 38. Hydraulic cylinder; 4. Clamping frame; 5. Assembly / disassembly assembly; 51. Fixed frame; 52. Insert block; 53. Insert rod; 54. Spring; 55. First baffle; 56. Second baffle; 57. Cavity; 58. Slot; 59. Groove; 510. Snap ring; 6. Palletizing clamping assembly; 61. Second motor; 62. Gear; 63. Through slot; 64. Slider; 65. Crossbar; 67. Rack; 68. Pressure sensor; 69. Controller; 7. Housing. Detailed Implementation

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] It should be noted that the structures, proportions, sizes, etc., shown in the accompanying drawings of this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the conditions under which this application can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size should still fall within the scope of the technical content disclosed in this application, provided that they do not affect the effects and purposes that this application can produce. Example 1

[0020] Please see Figure 1-8 The present invention provides a technical solution: a stacking device for sandwich panels, including a support base 1, a conveyor frame 2, a stacking clamping assembly 6, a disassembly assembly 5, a box 7 and two clamping frames 4, wherein the support base 1 is provided with a stacking conveying assembly 3.

[0021] The palletizing conveying assembly 3 includes a first motor 31, a lead screw 32, and a hydraulic cylinder 38. A movable seat 34 is threaded onto the outer side of the lead screw 32. A movable frame 35 is fixedly connected to the outer side of the movable seat 34. A support frame 36 is fixedly connected to the bottom of the movable frame 35. The first motor 31 is fixedly installed on the top of the support base 1. The output end of the first motor 31 is fixedly connected to the lead screw 32. The lead screw 32 is rotatably connected inside the support base 1. The first motor 31 drives the lead screw 32 to rotate, thereby driving the movable seat 34 to move up and down along the support base 1. Both sides of the movable frame 35 are fixedly connected to the connecting frame 37. The hydraulic cylinder 38 is fixedly installed on one side of the support base 1. The connecting frame 37 is fixedly connected to the piston rod of the hydraulic cylinder 38. The hydraulic cylinder 38 drives the support frame 36 to move laterally through the connecting frame 37 to move the sandwich panel. Two guide rods 33 are fixedly connected inside the support base 1. The movable seat 34 moves through the guide rods 33 and is slidably connected inside the support base 1. When the movable seat 34 moves up and down with the lead screw 32, the guide rods 33 guide the movable seat 34.

[0022] The workflow and principle are as follows: The palletizing conveying assembly 3 inside the support base 1 is driven by the first motor 31 to rotate the lead screw 32, which in turn moves the movable base 34 downward along the guide rod 33, allowing the movable frame 35 to reach the sandwich panel position on the building roof of the conveying frame 2. After the palletizing clamping assembly 6 clamps the sandwich panel, the first motor 31 reverses to move the movable frame 35 upward, and the hydraulic cylinder 38 pushes the support frame 36 laterally to the palletizing position through the connecting frame 37. The first motor 31 rotates forward to move the movable frame 35 downward, and the palletizing clamping assembly 6 releases the sandwich panel to complete the palletizing. The entire process achieves automated palletizing of sandwich panels. A telescopic dust cover is installed on the outside of the lead screw 32, with both ends sealed and fixed, and a lubrication interface is reserved for periodic replenishment of grease. Example 2

[0023] The difference from Embodiment 1 is that the disassembly assembly 5 includes a fixing frame 51, several springs 54, snap rings 510, and insert blocks 52. The fixing frame 51 has a cavity 57, in which several insert rods 53 are movably inserted. The fixing frame 51 is fixedly connected to the bottom of the slider 64. The insert blocks 52 are fixedly connected to one side of the clamping frame 4. When the insert blocks 52 are locked in the fixing frame 51, the clamping frame 4 is fixed to one side of the fixing frame 51. The outer side of the insert rods 53 is fixedly connected to a first baffle 55 and a second baffle 56 from top to bottom. The bottom of the second baffle 56 has a pull ring. The springs 54 are sleeved on the outer side of the insert rods 53. The top of the springs 54 is fixedly connected to the bottom of the first baffle 55, and the other end of the springs 54 is fixedly connected to the inside of the cavity 57. The bottom of the insert block 52 has a slot 58 that matches the insert rods 53. In the natural state, the springs 54 push the insert rods 53 upward, so that the top of the insert rods 53 is inserted into the slot 58. The bottom of the fixing bracket 51 has a groove 59. The second baffle 56 is movably inserted into the groove 59. The retaining spring 510 is located in the groove 59. The top of the insertion rod 53 is movably inserted into the slot 58. When the insertion rod 53 is inserted into the slot 58, the second baffle 56 is inserted into the groove 59, and the retaining spring 510 is embedded in the groove 59 to prevent the second baffle 56 from dislodging from the groove 59, thereby achieving secondary locking of the insertion rod 53.

[0024] Working process and principle: Pulling down the pull ring moves the second baffle downwards, thereby retracting the insertion rod 53 into the cavity 57. This compresses the spring 54, storing force. After the insertion block 52 is inserted into the fixing frame 51, the pull ring is released, and the insertion rod 53 automatically moves upwards under the elastic force of the spring 54, its top end inserting into the slot 58 of the insertion block 52, achieving initial locking. At this time, the second baffle 56 simultaneously embeds into the groove 59, and the retaining spring 510 engages in the groove 59, limiting the displacement of the second baffle 56, forming a secondary fixation of the insertion rod 53, completing the assembly of the clamping frame 4 and the fixing frame 51. For disassembly, first remove the retaining spring 510 to release the secondary locking, then pull down the pull ring to move the insertion rod 53 downwards, disengaging it from the slot 58, thus separating the insertion block 52 from the fixing frame 51, enabling quick replacement of the clamping frame 4. The entire process requires no tools, relying on the synergy of the spring 54 and the retaining spring 510 to achieve stable locking and flexible disassembly. The spring 54 should be inspected and maintained regularly; if the spring 54 is found to be defective, it should be replaced promptly. Example 3

[0025] The difference from Embodiment 1 is that the palletizing clamping assembly 6 includes a second motor 61, a pressure sensor 68, a controller 69, a gear 62, and two crossbars 65. Slider 64 is fixedly connected to both ends of the crossbars 65. A through slot 63 adapted to the slider 64 is provided on the top of the connecting frame 37. A rack 67 meshing with the gear 62 is fixedly connected to one side of each of the two crossbars 65. The module of the gear 62 is the same as that of the rack 67, and the meshing overlap is ≥1.3. The pressure sensor 68 is fixedly embedded in the side wall of the fixing frame 51 and attached to one side of the clamping frame 4. The controller 69 is installed on one side of the housing 7. The pressure sensor 68 is electrically connected to the second motor 61 through the controller 69. The two opposing clamping frames 4 are fixedly locked to the bottom of the two crossbars 65 by the disassembly and assembly assembly 5. When the gear 62 rotates, it drives the two meshing racks 67 on both sides to move synchronously, thereby driving the two opposing clamping frames 4 to move and clamp the sandwich plate. The back of the clamping frame 4 is always in contact with the contact area of ​​the pressure sensor 68. When the two opposing clamping frames 4 clamp the sandwich plate, they squeeze the pressure sensor 68. When the pressure received by the pressure sensor 68 exceeds the set threshold for more than 2 seconds, the second motor 61 is driven to stop by the controller 69, which enables rapid clamping of sandwich panels of different sizes. The pressure sensor 68 has a set threshold range of 0.2-0.5MPa (adjustable according to the compressive strength of the sandwich panel), making its application range wider and more flexible. The housing 7 is fixed to the top of the support frame 36, and the second motor 61 is installed on the top of the housing 7. The output end of the second motor 61 is inserted into the housing 7 and fixedly connected to the gear 62. Both the upper and lower ends of the gear 62 are fixedly connected with annular protrusions. This design prevents the rack 67 from disengaging from the gear 62 during movement, making the movement more stable.

[0026] Working Process and Principle: When the palletizing clamping assembly 6 is working, the second motor 61 drives the gear 62 to rotate, causing the meshing racks 67 on both sides to move synchronously in opposite directions. This causes the two opposing crossbars 65 to slide along the through groove 63 via the slider 64, thereby driving the two opposing clamping frames 4 to move towards each other and clamp the sandwich panel. During clamping, the back of the clamping frame 4 continuously presses against the pressure sensor 68. When the pressure value exceeds the preset threshold of the controller 69 and remains there for 2 seconds, the controller 69 immediately cuts off the power to the second motor 61 to achieve an emergency stop, preventing damage to the sandwich panel due to overpressure. The annular protrusion structure of the gear 62 ensures that the rack 67 is always stably meshed with the gear 62. After clamping is completed, the second motor 61 reverses to release the sandwich panel. The linkage between the pressure sensor 68 and the controller 69 enables the assembly to adapt to sandwich panels of different thicknesses, improving clamping safety and versatility. The pressure sensor 68 is a model WPAH01 manufactured by Zhengzhou Weisheng Electronic Technology Co., Ltd. The first motor 31 and the second motor 61 are both three-phase asynchronous geared motors, which are model CLJSJ-CH02 manufactured by Kunshan Taiya Electromechanical Technology Co., Ltd. Since the structure and operating principle of this model are existing technologies, their structure and operating principle will not be described in detail here.

[0027] Additionally, please see Figure 9 The present invention also provides a method of using a stacking device for sandwich panels, comprising the following steps: S1. Installation of clamping frame 4: Insert the insert block 52 on one side of clamping frame 4 into the fixing frame 51 and lock it by disassembly and assembly component 5, thereby installing the two clamping frames 4 opposite each other under the connecting frame 37. S2, Palletizing device moves down: The sandwich panel moves with the conveyor frame 2 to directly below the moving frame 35, and the first motor 31 rotates in the forward direction to drive the moving frame 35 to move down to the outside of the conveyor frame 2; S3. Clamping the sandwich panel: The second motor 61 drives the two crossbars 65 to move relative to each other through the gear 62 and the meshing racks 67 on both sides, thereby driving the two opposing clamping frames 4 to move relative to each other and clamp the sandwich panel. When the pressure sensor 68 is squeezed by the sandwich panel and the pressure exceeds the set threshold for more than 2 seconds, the second motor 61 temporarily stops and the sandwich panel is clamped. S4, Sandwich Panel Stacking: The first motor 31 rotates in the reverse direction to drive the moving frame 35 holding the sandwich panel to move upward. The piston rod of the hydraulic cylinder 38 extends and retracts, driving the moving frame 35 to move horizontally above the stacking frame through the connecting frame 37. The first motor 31 rotates in the forward direction, driving the sandwich panel to move downward onto the stacking frame. The second motor 61 reverses and resets to release the sandwich panel, completing one stacking of sandwich panels.

[0028] In summary, this sandwich panel palletizing device operates through the coordinated operation of three core components: the palletizing conveying component 3 is driven by a first motor 31, which drives a lead screw 32 to move a moving frame 35 up and down along a guide rod 33, while a hydraulic cylinder 38 moves the sandwich panel laterally; the disassembly and assembly component 5 uses a double locking mechanism of spring 54 and snap ring 510, and pulling down the pull ring allows the insertion rod 53 to disengage from the slot 58 of the insertion block 52 for quick replacement of the clamping frame 4; the palletizing clamping component 6 is driven by a second motor 61, which drives a gear and rack mechanism to move the two clamping frames 4 towards each other to clamp the panels, and a pressure sensor 68 monitors the clamping force in real time, and a controller 69 immediately stops the device when the force exceeds a threshold. The entire system achieves automatic positioning, flexible clamping, precise palletizing, and quick replacement of the sandwich panels. The guide rod 33 ensures lifting stability, the annular protrusion of the gear 62 prevents the rack 67 from disengaging, and the combination of spring 54 and snap ring 510 ensures both locking reliability and ease of maintenance. The components are linked by electrical control to form a closed-loop control system, which balances efficiency and safety and is suitable for the automated palletizing needs of sandwich panels of different specifications.

[0029] Those skilled in the art will understand that the features described in the various embodiments and / or claims of the present invention can be combined or combined in various ways, even if such combinations or combinations are not explicitly described in the present invention. In particular, the features described in the various embodiments and / or claims of the present invention can be combined or combined in various ways without departing from the spirit and teachings of the present invention. All such combinations and / or combinations fall within the scope of the present invention.

Claims

1. A stacking device for sandwich panels, comprising a support base (1), a conveyor frame (2), a stacking clamping assembly (6), a disassembly assembly (5), a housing (7), and two clamping frames (4), characterized in that, The support base (1) is equipped with a palletizing and conveying assembly (3); The palletizing conveying assembly (3) includes a first motor (31), a lead screw (32) and a hydraulic cylinder (38). A movable seat (34) is threaded onto the outside of the lead screw (32). A movable frame (35) is fixedly connected to the outside of the movable seat (34). A support frame (36) is fixedly connected to the bottom of the movable frame (35). The disassembly and assembly assembly (5) includes a fixing frame (51), several springs (54), snap rings (510) and inserts (52). The fixing frame (51) is provided with a cavity (57), and several inserts (53) are movably inserted into the cavity (57). The palletizing clamping assembly (6) includes a second motor (61), a pressure sensor (68), a controller (69), a gear (62), and two crossbars (65). The two ends of the crossbars (65) are fixedly connected to sliders (64). The top of the connecting frame (37) is provided with a through groove (63) adapted to the sliders (64). The two crossbars (65) are fixedly connected to racks (67) that mesh with the gears (62) on opposite sides.

2. A stacking device for sandwich panels according to claim 1, characterized in that, The first motor (31) is fixedly installed on the top of the support base (1), and the output end of the first motor (31) is fixedly connected to the lead screw (32), which is rotatably connected inside the support base (1).

3. A stacking device for sandwich panels according to claim 1, characterized in that, Both sides of the movable frame (35) are fixedly connected to the connecting frame (37), the hydraulic cylinder (38) is fixedly installed on one side of the support base (1), and the connecting frame (37) is fixedly connected to the piston rod of the hydraulic cylinder (38).

4. A stacking device for sandwich panels according to claim 1, characterized in that, Two guide rods (33) are fixedly connected inside the support base (1), and the movable seat (34) moves through the guide rods (33) and is slidably connected inside the support base (1).

5. A stacking device for sandwich panels according to claim 1, characterized in that: The fixing frame (51) is fixedly connected to the bottom of the slider (64), and the insert (52) is fixedly connected to one side of the clamping frame (4).

6. A stacking device for sandwich panels according to claim 5, characterized in that, The outer side of the insertion rod (53) is fixedly connected with a first baffle (55) and a second baffle (56) from top to bottom. The spring (54) is sleeved on the outer side of the insertion rod (53). The top of the spring (54) is fixedly connected to the bottom of the first baffle (55). The other end of the spring (54) is fixedly connected to the inside of the cavity (57). The bottom of the insertion block (52) is provided with a slot (58) that is compatible with the insertion rod (53).

7. A stacking device for sandwich panels according to claim 1, characterized in that, The bottom of the fixing frame (51) is provided with a groove (59), the second baffle (56) is movably inserted into the groove (59), the snap ring (510) is located in the groove (59), and the top of the insert rod (53) is movably inserted into the slot (58).

8. A stacking device for sandwich panels according to claim 1, characterized in that, The pressure sensor (68) is fixedly embedded in the side wall of the fixing frame (51) and attached to one side of the clamping frame (4). The controller (69) is installed on one side of the housing (7). The pressure sensor (68) is electrically connected to the second motor (61) through the controller (69).

9. A stacking device for sandwich panels according to claim 1, characterized in that, The housing (7) is fixed to the top of the support frame (36), the second motor (61) is installed on the top of the housing (7), the output end of the second motor (61) is inserted into the housing (7) and fixedly connected to the gear (62), and the upper and lower ends of the gear (62) are fixedly connected with annular protrusions.

10. A method of using a stacking device for sandwich panels, characterized in that, The specific steps include the following: S1. Installation of clamping frame (4): Insert the insert (52) on one side of clamping frame (4) into the fixing frame (51) and lock it by disassembly and assembly component (5) so that the two clamping frames (4) are installed opposite each other under the connecting frame (37); S2, the stacking device moves down: the sandwich panel moves with the conveyor (2) to the bottom of the moving frame (35), and the first motor (31) rotates in the forward direction to drive the moving frame (35) to move down to the outside of the conveyor (2); S3, Clamping the sandwich panel: The second motor (61) drives the two crossbars (65) to move relative to each other through the gear (62) and the meshing racks (67) on both sides, thereby driving the two opposing clamping frames (4) to move relative to each other and clamp the sandwich panel. When the pressure sensor (68) is squeezed by the sandwich panel and the pressure exceeds the set threshold for more than 2 seconds, the second motor (61) temporarily stops and the sandwich panel is clamped. S4, Sandwich Panel Stacking: The first motor (31) rotates in the reverse direction to drive the moving frame (35) holding the sandwich panel to move upward. The hydraulic cylinder (38) drives the moving frame (35) away from the conveyor frame (2) and moves it above the stacking frame through the connecting frame (37). The first motor (31) rotates in the forward direction, driving the sandwich panel to move downward to the stacking frame. The second motor (61) reverses and resets to release the sandwich panel, completing one stacking of sandwich panels.

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